6.19 Ct. Bluish Green Prasiolite from Brazil

This listing presents one beautiful transparent 6.19 carat oval shape bluish green prasiolite, with precise dimensions of 13.07 x 11.24 x 7.35 mm, faceted in a refined mixed brilliant cut and finished to an excellent polish, offered by The Natural Gemstone Company. The oval silhouette combines classic elegance with modern versatility, and the mixed brilliant cutting style balances scintillation and depth by using a brilliant facet constellation on the crown and well proportioned pavilion facets to return light with lively sparkle. Eye clean at normal viewing distance, this prasiolite displays intense color saturation that moves between vivid teal and deep bluish green depending on lighting and viewing angle, and its transparency is uniform across the table and crown. Enhancement by controlled heat treatment is disclosed and consistent with trade practice for prasiolite, the resulting stable and attractive green hue being produced from material originally containing iron impurities. Origin is Brazil, a source long respected for supplying high quality quartz and amethyst varieties that respond predictably to heat treatment, and the combination of size, color intensity, and clarity make this gem an immediate focal point for any serious collection.

From a gemological perspective, prasiolite is a green variety of quartz with the same basic physical properties as all quartz family members, including a typical refractive index in the range of about 1.54 to 1.55, birefringence near 0.009, and a specific gravity around 2.65. Mohs hardness of 7 provides reliable daily wear performance for rings, pendants, and other jewelry, while still benefiting from careful settings to protect the stone from hard knocks. The term eye clean denotes that inclusions are not visible to the unaided eye at normal viewing distance, while microscopic or internal features may reveal themselves under magnification, which is entirely consistent with a natural gem of this size and clarity. The disclosed heat treatment is a stable, permanent enhancement applied under controlled laboratory conditions to transform the original hue, and prudent collectors understand that such treatments are industry standard for prasiolite and are fully acceptable when openly declared.

For the educated buyer, this particular prasiolite represents a compelling combination of attributes that elevate it beyond merely decorative quartz. Large Transparent prasiolites with intense bluish green color are uncommon on the market, and a 6.19 carat example with eye clean clarity and an excellent polish is especially notable. The mixed brilliant cut has been executed to maximize both depth of color and surface scintillation, producing lively return of light and a feeling of internal depth that can rival more expensive green gemstones when evaluated for beauty per carat. Brazil provenance adds provenance value, as Brazilian quartz deposits have a long established reputation for producing material with fine clarity and homogenous color that responds well to heat treatment. Collectors and connoisseurs will appreciate that this gem offers visual complexity, practical durability, and ethical transparency, all of which are key considerations when building a high end gemstone collection or commissioning a bespoke centerpiece for fine jewelry.

As part of The Natural Gemstone Company inventory, this prasiolite is presented with full disclosure of enhancements and origin, and we encourage buyers to request additional information such as independent gemological reports or high resolution imaging for closer study. In jewelry design, this oval prasiolite performs beautifully in four or six prong settings that allow light to enter freely, or in a low bezel for greater protection, and metal choices such as warm yellow gold, rich rose gold, or crisp white gold and platinum will each accentuate different facets of the bluish green tone. Care recommendations include avoiding prolonged exposure to extreme heat or intense direct sunlight to preserve the vibrancy of the color, and choosing gentle cleaning with warm soapy water and a soft brush rather than harsh chemical or steam cleaners. For collectors seeking a singularly attractive green quartz with professional finish, substantial weight, and traceable origin, this 6.19 carat prasiolite from The Natural Gemstone Company is a perfect addition to a high end gemstone collection, offering both immediate visual impact and long term versatility for future settings or investment.